[1]
R. Saini, R. Yadav, and B. Pathak, “Use of cervical length, measured by transvaginal sonography at 22 to 26 weeks, as a predictor of preterm labour in twin pregnancy”, Int J Reprod Contracept Obstet Gynecol, vol. 7, no. 9, pp. 3590–3595, Aug. 2018.